Mathematics, 19.02.2020 04:50 kandi2565
A fitness instructor wants to test the effectiveness of a performance-enhanding herbal supplement on students in her exercise class. To create experimental groups that are similar at the beginning of the study, the students are assigned into two groups at random (they cannot choose which group they are in). Students in both groups are given a pill to take every day, but they do not know whether the pill is a placebo (sugar pill) or the herbal supplement. The instructor gives Group A the herbal supplement and Group B receives the placebo (sugar pill). The students' fitness level is compared before and after sik weeks of consuming the supplement or the sugar pill. No differences in performance ability were found between the two groups suggesting that the herbal supplement was not effective. Is this an example of an observational study or an experimental study? Why?
Answers: 3
Mathematics, 21.06.2019 15:00
Listed in the table is the percentage of students who chose each kind of juice at lunchtime. use the table to determine the measure of the central angle you would draw to represent orange juice in a circle graph
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Mathematics, 21.06.2019 19:30
Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29
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Mathematics, 21.06.2019 19:30
Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?
Answers: 2
A fitness instructor wants to test the effectiveness of a performance-enhanding herbal supplement on...
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